Measuring-pump.



No. @$0,336. Paented 1an. 2, i900. J. J. TOKHEIM.

WIEASURING PUMP.

(Application filed Oct. 28, 1898.)

(No Windel.)

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JOHN J. TOKHEIM, OF THOR, lOlVA.

MEASUHlNG-l-PUMP.

SPECIFICALKON forming part of Letters Patent No. 640,336, dated January 2, 1900.

Application filed October 28, 1898. Serial No. 694,788. (No model.)

To @ZZ whom it may concern:

Beit known that l, JOHN J. TOKHEIM, citizen of the United States, residing at Thor, in the county of Humboldt and State of Iowa, have invented certain new and useful Improvements in Measuring-Pu nips; and I do declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to measuring-pu inps, and has for its object the production of an improved appliance of this character by which liquid, such as oil, may be accurately measured.

My invention includes, among other novel features, a receptacle for the pumped liquid having provision in the shape of an adjustable overow for predetermining its liquid content, and also a means for eectin g the com plete draining of the receptacle and dischargepipe when such predetermined liquid content shall have been exhausted.

My invention in all of its details is fully and clearly set forth in the following description, and in connection with this description attention is called to the accompanying drawings, in which Figure l is a perspective viewof a measuring-pump embodying my invention. Fig. 2 is a sectional View, certain of the parts being omitted.

Referring to the said drawings by letter, A denotes the pump-stock, which leads from a liquid-containing cask or tank and in which is the pump-piston. (Not shown.) The upper end of the pump-stock A is screwed into the lower side of a coupling B, and at the upper side of this coupling is a stuffing-box Z9, through which passes the piston-rod c. The coupling is provided with a base-liange Zr, by which it is secured to a suitable platform. At h2 b2 on the coupling are ears, to which is pivotally attached the lower bifurcated end of an arm CZ, forming the fulcrum of the pumphandle e. Screwed into a lateral branch hi' of the coupling B is the supply-pipe f, which is in communication with the pipe-stock and is connected at its upper end by an elbow g with a short pipe ZL. This latter pipe is screwed into an inverted-T-coupling t', and into the opposite side of the coupling 'L' and in line with the pipe h is screwed the outletpipe j, which terminates in a faucet 7c. The reservoir L is supported by the coupling z' through the medium of a short pipe m, which is screwed into the flanged opening of thereservoir base-plate Z. This plate is threaded at its outer edge to receive a threaded ring Z, which ring is flanged at its upper side to e11- gage the lower flanged end of the reservoircasing Z2, a gasket Z3 being interposed between the said lower edge and plate to secure a liquid-tight joint.

N denotes the overflow-pipe of compaia' tively small diameter, which extends from the cask or tank through an aperture in the coupling B and thence through the coupling c' and Vpipe fm into the reservoir-casing, where it terminates near the top of the latter. At the point where the pipe N is passed through the coupling t screw-threads 'a' are provided, which engage threads in the coupling-opening, whereby by turning the pipe to the right or left its vertical position with relation to the height of the reservoir may be Varied. O11 the reservoincasing, which is of glass or other transparent material, are graduation-lines denoting `fractions of a gallon. These lines may, however, be placed upon the overflowfpipe N.

In operation the liquid, such as oil, is drawn from the cask or tank and forced upward through the supply-pipe, and after filling the pipe Zt, coupling t', and outlet-pipe] the liquid rises into the reservoir to a level which is predetermined by the height of the overflowpipe N. Obviously by the employment of the oVeriiow-pipe the liquid content of the reservoir is accurately determined, any excess inding its way back to the cask or tank. The graduation-lines are employed to denote the quantity of liquid contained in the reservoir, and also in the outlet-pipe, coupling t', pipes m and 7L, and elbow g down to the line fr, and in measuring oli' the liquid through the faucet Zo the content of the connections is thus taken into account, the result being the draining of these connections when the full quantity say, for instance, a gallon-has been drawn. The advantages of such a construction are that little care and skill need be exercised either ICO in filling the reservoir or in drawing o the entire content and also that repairs and adj ustments are greatly facilitated by the provision for draining the connections adjacent to the reservoir.

In assembling the parts of my improved measuring-pump the feature of the adjustable overflow-pipe will be found to have great advantage in that by regulating its height with relation to the reservoir the liquid content of the latter may be accurately predetermined.

The appliance is very simple in construction, very durable and not liable to disorder, and may be produced inexpensively.

I claim as my invention- '1. In a measuring-pump and in combination with a chambered base-casting, and the pump-stock entering said chamber,the piston-l rod passing through said chamber, the supply-pipe standing from the upper side of said chamber, and terminating in a horizontal discharge branch' controlled by a faucet, a res-l ervoir mounted upon and opening into the discharge branch between the standing supply-pipe and the faucet, and an overflow-pipe mounted in a guidearm of said base=casting, passing transversely through said discharge branch, having a surface screw engaging a 3o threaded tubular `part on the under side of said branch and passing into the reservoir, the opening wherein is larger than the overflow-pipe.

` 2. Inameasuring-pump, achambered basecasting having la screw-opening on its under side, a screw-opening and a stuiiing-box both on its upper side, and a vertical side tubular arm, in combination with the pump-stock engaging said chamber-bottom opening, the standing supplypipe engaging the upper opening of said chamber and terminatingina horizontal discharge branch controlled by a faucet and having a depending tubular screw part, a reservoir mounted upon and opening into the branch pipe vertically in line with the tubular screw part, the piston-rod passing through said casting-chamber and stuffingboX, and an overflow-pipe mounted in the tubular arm of the base-castin g and provided with a surface screw engaging the tubular screw part of the branch pi pe ,passing through the latter and through an opening in the reservoir having a greater diameter than the overflow-pipe.

In testimony whereof I aix my signature in presence of two witnesses. i Y, J OI-IN J. TOKHEIM.

Witnesses:

G. E. TOKHEIM, JOHN O. OLsoN. 

